Home Postcode finder WA Shannon Shannon postcode WA Shannon is a locality in Western Australia covered by postcode 6262. Postcode 6262 State or territory Western Australia (WA) Region Wa Subs 3 Sth Rd Add a free Shannon business listing Be the first listing in Shannon Common questionsWhat is the postcode for Shannon?Shannon, WA has the postcode 6262.What state is Shannon in?Shannon is in Western Australia (WA).Does postcode 6262 cover more than one suburb?Yes. Postcode 6262 covers 5 localities, so the postcode alone does not identify Shannon. Browse other postcodes in Western Australia, or widen the search to every Australian postcode.